Migrant

This third explosion was too much for tlie people of Texas City, who had responded efficiently to the initial two blasts. Hundreds were forced to leave the city, letting the fire bum itself out. The series of explosions luid killed approximately 500 people and seriously injured 1000 otliers. The final deatli toll iiuiy ha e been as high as 1000 because the dock area contained a large population of migrant workers without permanent address or known relatives. It was reported tliat tliis disaster probably was caused by careless smoking aboard tlie Grandcamp. 

Fitting a rearranged system to the steric requirements shown above within a molecule is needed for an intramolecular mechanism. Even when the appropriate arrangement cannot be achieved within a single molecule, the required configuration, 29 or 30, can possibly be realized in a dimer or higher associate. For metal-centered migrants, an alternative intermolecu-lar mechanism of the dissociative SnI type is also possible. 

In the mid-eighteenth century a migrant blacksmith, Jonathan Osborne, was attracted by this plentiful water, by the supply of iron ore being mined over the mountain to the east, and by the inexhaustible forest of chestnut for his charcoal fires. At the foot of Picatinny Peak he built one of the first forges in New Jersey... 

The relative displacement rates of the interfaces AIAB and ABIB in any particular system will, of course, depend on the relative migration velocities of all mobile participants across the barrier layer and reaction will continue while appropriate reactant constituents remain available. Such migrant entities travel by the most efficient route and therefore overall rates of such reactions are frequently sensitive to the concentration of imperfections in the product crystal lattice [1171]. One possible... 

Two product barrier layers are formed and the continuation of reaction requires that A is transported across CB and C across AD, assuming that the (usually smaller) cations are the mobile species. The interface reactions involved and the mechanisms of ion migration are similar to those already described for other systems. (It is also possible that solid solutions will be formed.) As Welch [111] has pointed out, reaction between solids, however complex they may be, can (usually) be resolved into a series of interactions between two phases. In complicated processes an increased number of phases, interfaces, and migrant entities must be characterized and this requires an appropriate increase in the number of variables measured, with all the attendant difficulties and limitations. However, the careful selection of components of the reactant mixture (e.g. the use of a common ion) or the imaginative design of reactant disposition can sometimes result in a significant simplification of the problems of interpretation, as is seen in some of the examples cited below. 

H NMR spectra can be used in several ways, from a simple fingerprint of the potential migrants... 

Westermeyer, J. (1989). Somatotherapies. In J. H. Gold, ed., Psychiatric Care of Migrants A Clinical Guide. Washington American Psychiatric Press, pp. 139-68. 

We test the permeability of polymer films or sheets to various vapors and gases by mounting the polymer between chambers that contain different concentrations of the migrant molecules. We can determine the permeability from pressure changes, volumetric changes, or by microanalytical techniques that measure the concentration of the migrant molecules in a stream of gas flowing across the low concentration side of the barrier. 

Gilbert SG, Miltz J, Giacin JR. 1980. Transport considerations of potential migrants from food packaging materials. Journal of Food Processing and Preservation 4 27-49. 

These are reasonable KIEs for a secondary isotope effect in a 1,2-C migration, and originate from the hybridization changes at the migrant carbon (sp2,6 -> sp24) QMT is therefore not invoked.77... 

The product ratio a /b (statistically corrected for the number of competing H migrants), gives the relative migration rate of Ha vs. Hb, or k /kub- The rate constant for the migration of Ha corresponds to the intrinsic migratory aptitude of Ha (M[H]) multiplied by the bystander assistance factor for Y, B[Y], The carbon atom that bears Hb has no bystander substituent, so that km, is simply A/[H], We thus obtain Eq. 24. 

The bystander substituent (Y) exerts a direct influence on the migrant group (M) at the migration origin. In contrast, a spectator substituent (X in Eq. 22)... 

Spectator substituents, bonded to the carbene s migration terminus (Ci), directly influence the lifetime and philicity of the carbene, but they do not primarily alter the migratory aptitudes of migrants on C2. Oxa spectator substituents stabilize singlet carbenes by electron donation to the vacant carbenic p orbital (LUMO) cf. resonance hybrid 69. 

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